Time-stamp



M. SHERAS.

TIME STAMP.

APPLICATION FILED FEB. 11. I919.

1,332,960. Patented Mar. 9,1920.

Mam 3y Warn); heraq MORRIS SHERAS, OF CHICAGO, ILLINOIS.

TIME-STAMP.

Specification of Letters Patent.

Patented Mar. 9,1920.

Application filed February 17, 1919. Serial No. 277,486.

To all whom it may concern Be it known that I, MORRIS SHERAS, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Time-Stamps, of which the following is a specification. This invention relates to impression stamps and particularly to time stamps the characteristic features of which are the horological or time train, the impression train, the driving connection between the two trains, permutation impression elements, a permanent impression pad, and a changeable date line. Ordinarily considerable difficulty is experienced in so constituting the drive connection between the two gear trains as to avoid impairment of the-mechanism by reason of the vertical blows incident to the use of sucha stamp. This difiioulty is met herein by the provision of a coupling in the drive which leaves the parts free for vertical relative movement without aifecting the rotary engagement.

The features of the invention as hereinabove generally outlined and their cooperation to produce a stamp of signal superiority will be readily understood and appreciated by those skilled in the art as re vealed in the accompanying drawing and in the following detailed description based thereon. It is obvious that the features of construction are susceptible of modification within a considerable range without the sacrifice of material advantage and without departure from the essence of the invention, wherefore the drawing and description are to be taken in an illustrative rather than in an unnecessarily limiting sense. In the drawing- Figure 1 is a rear elevation of the time stamp with the back cover plate removed;

Fig. 2 is an edge elevation of the time stamp broken away to show a portion thereof in vertical section on the line 22 of Fig. 1;

Fig. 3 is a horizontal section on the line 3-3 of Fig. 1; and

Figs. 4 and 5 are detail perspective views of elements of the coupling in the drive.

Having detail reference to the drawings, the time stamp case is indicated with the reference numeral 11 containing the clock mechanism with the dial at the right as viewed in Fig. 2 and away from the observer as viewed in Fig. l. The case is closed at the rear by means of the removable back 12 and at the bottom by the base plate 13 which carries the impression gear train, the said train being separable as between the lower and upper portions thereof, the lower portion being removable with the plate 13.

The setting arbor of the horological train is indicated at 14 and one element of the horological train at 15. A plate 16 serves as a mounting for a pinion 17 which meshes with the pinion 15 and the plate in its lower portion is reversely bent upon itself as indicated at 18 to form vertically spaced horizontal portions 19 and 20 for the short shaft 21 carrying upon its upper end a pinion 22 in mesh with the pinion 17 with its lower end shouldered as indicated at 22 and below the shoulder flattened to provide the elongated rectangular terminal portion 24. That portion of the train above described is mounted in a stationary manner upon the fixed portions of the time clock interior and is arranged to have separable cooperative connection with the removable portion of the driving train connected with the permutation impression train which will now be described.

The lower face of the plate 13 forms a place of attachment for the permanent impression pad, not illustrated, and also for the changeable date line indicated in dotted lines in Fig. 3, and designated by the reference numeral 25. The plate 13 also serves as a mounting for the dial circle indicated in dotted lines in Fig. 3 by the reference numeral 26 and including the hour characters. Within the circle 26 revolves the impression minute hand 27 and the impression our hand 28-all of which arrangement is old. The hour hand 28 has fixed relation to the hour pinion 29 in mesh with the small pinion 30 carried by the shaft of the larger pinion 31 which, in turn, is in mesh with the minute hand pinion 32 which has fixed relation to the minute hand 27. The shaft 33 of the minute hand 26 and pinion 32 has fixed upon its upper hand a disk 34% (Fig. 5) with oppositely extending wings 35 upwardly bent as illustrated with their shanks 36 engaged within slots 37 of the cooperating member illustrated in Fig. 4 which comprises a cup-like element 38 with oppositely extending wings 39 arranged in parallel relation and spaced apart to provide the before mentioned slots 37 It will be observed that the disk element 34 and the cup-like element 38 have a sliding engagement one with the other in a direction laterally of the axes of the shafts 21 and 33 which are approximately but not necessarily in exact alinement, the shanks 36 of the wings sliding within the slots 37 of the wings 89.

The upper closed end 40 of the cup-like element 38 has formed therein an elongated rectangular opening 41 of substantially the same width and length as the rectangular flattened terminal portion 24 of the arbor 21,

and adapted for the reception of the latter.

and to allow of axial play therein.

VVhenthe removable plate 13 is assembled with relation to the case 11 the opening 41 of the cup member 38 receives the lower terminal flattened stud portion 24 of the arbor 21, thus affording a coupling between the upper and lower portions of the driving connection between the horological and impression trains, which is flexible both in a vertical direction, by reason of the cooperation of the stud and opening, and also laterally, by reason of the sliding engage- I a horological gear train and the impression gear tram, .of a driving connection therebetween including two approximately alined shafts carrying at their adjacent ends unround cooperating male and female elements, one of the elements so connected with its shaft as to permit of relative lateral play therewith.

2. In a time stamp, the combination with a horological gear train and'the impression gear train, of a driving connection therebetween including two approximately alined shafts carrying at their adjacent ends unround cooperating male and female elements with provision for axial and lateral play and against angular play.

3. In a time stamp, the combination with a horological gear train and the impression gear train, of a driving connection therebetween including two approximatel alined shafts carrying at their adjacent en s one a transversely elongated stud element and the other a transversely extending plate havin a slot therein for the reception of the stu member with provision for axial play therebetween.

4. In a time stamp, the combination with a horological gear train and the impression gear train, of a driving connection therebetween including two approximatel alined shafts carrying at their adjacent en s one a transversely elongated stud element and the other a transversely slotted element for the reception of the stud member with provision for axial and lateral play and against angular play.

5. In a time stamp, the combination with a horological gear train and the impression gear train, of adriving connection therebetween including two approximately alined shafts carrying at their adjacent ends one a transversely elongated stud element and the other a transversely slotted element for the reception of the stud member with provision for axial and lateral play and against angular play, the slotted member comprising one member fixed to the shaft and having lateralwings and another member carried by the first member and having lateral wings, the wings of the two members having a sliding engagement with each other whereby the two members have a limited relative lateral movement.

In testimony whereof I have hereunto signed my name in the presence of two subscribing witnesses.

WALTER M. WRIGHT, M. E. MATHESON. 

